From: Dave Chinner <david@fromorbit.com>
To: Theodore Ts'o <tytso@mit.edu>
Cc: Nikhilesh Reddy <reddyn@codeaurora.org>, linux-ext4@vger.kernel.org
Subject: Re: Emergency remount readonly and EFBIG errors when unlinking files on 3.18 android kernel
Date: Wed, 27 Apr 2016 13:25:17 +1000 [thread overview]
Message-ID: <20160427032517.GK18496@dastard> (raw)
In-Reply-To: <20160427030736.GB30021@thunk.org>
On Tue, Apr 26, 2016 at 11:07:36PM -0400, Theodore Ts'o wrote:
> On Tue, Apr 26, 2016 at 03:08:27PM -0700, Nikhilesh Reddy wrote:
> > I would appreciate if you could point me in the right direction and any help
> > you can give me.
>
> Well, what I'd do is create a new ioctl interface which simulates an
> emergency ro on just the one device, and try to create a reliable
> repro. Eventually we'll want to add some tests for this in xfstests.
That's pretty much XFS_IOC_GOINGDOWN, controlled by xfs_io -c shutdown.
I'd suggest that adding a new flag:
#define XFS_FSOP_GOING_FLAGS_EMERG_REMOUNT 0x4
Would be in line with it's existing usage in xfstests for forcing
different shutdown conditions on filesystems....
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2016-04-27 3:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-26 22:08 Emergency remount readonly and EFBIG errors when unlinking files on 3.18 android kernel Nikhilesh Reddy
2016-04-27 3:07 ` Theodore Ts'o
2016-04-27 3:25 ` Dave Chinner [this message]
2016-04-27 17:56 ` Nikhilesh Reddy
-- strict thread matches above, loose matches on Subject: below --
2016-05-02 0:59 Daeho Jeong
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